Small. Fast. Reliable.
Choose any three.
Choose any three.
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SQLite As An Application File Format
(appfileformat.html)
... An automated undo/redo stack, managed using triggers,
can be kept in the on-disk database, meaning that undo/redo can occur
across session boundaries.
Easily Extensible.
As an application grows, new features can be added to an
SQLite application ...
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SQLite Session Module C/C++ Interface
(session.html)
... The name of the function comes from the fact that
this is similar to the "new.*" columns available to update or delete
triggers.
If some other error occurs (e.g. an OOM condition), an SQLite error code
is returned and ...
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Built-In Scalar SQL Functions
(lang_corefunc.html)
... changes()
The changes() function returns the number of database rows that were changed
or inserted or deleted by the most recently completed INSERT, DELETE,
or UPDATE statement, exclusive of statements in lower-level triggers.
The changes() SQL function is a ...
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What If OpenDocument Used SQLite?
(affcase1.html)
... We could continue to enhance the schema with new tables, with indexes
added for performance, with triggers and views for programming convenience,
and constraints to enforce consistency of content even in the face of
programming errors. Further enhancement ideas include ...
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The RBU Extension
(rbu.html)
2.1. RBU Update Limitations
... The RBU update will not fire any triggers.
The RBU update will not detect or prevent foreign key or
CHECK constraint violations.
All RBU updates use the "OR ROLLBACK" constraint handling mechanism.
The target database may not be in WAL ...
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The WITH Clause
(lang_with.html)
... Limitations And Caveats
The WITH clause cannot be used within a CREATE TRIGGER.
The WITH clause must appear at the beginning of a top-level SELECT statement
or at the beginning of a subquery. The WITH clause cannot be prepended ...
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SQLite Frequently Asked Questions
(faq.html)
... Temporary
tables and their indices and triggers occur in another special table
named SQLITE_TEMP_SCHEMA. SQLITE_TEMP_SCHEMA works just like SQLITE_SCHEMA
except that it is only visible to the application that created the
temporary tables. To get a list of all tables ...
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Write-Ahead Logging
(wal.html)
2.3. Performance Considerations
... This has the effect of causing most
COMMIT operations to be very fast but an occasional COMMIT (those that trigger
a checkpoint) to be much slower. If that effect is undesirable, then
the application can disable automatic checkpointing and run ...
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SQL Language Expressions
(lang_expr.html)
... the WHERE clause of a SELECT, UPDATE or DELETE statement,
the ON or USING clause of a join in a SELECT statement,
the HAVING clause of a SELECT statement,
the WHEN clause of an SQL trigger, and
the WHEN clause ...
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The Virtual Table Mechanism Of SQLite
(vtab.html)
1. Introduction
... One cannot create a trigger on a virtual table.
One cannot create additional indices on a virtual table.
(Virtual tables can have indices but that must be built into
the virtual table implementation. Indices cannot be added
separately using CREATE ...
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